2004-10-08 Andrew Cagney <cagney@gnu.org>
[deliverable/binutils-gdb.git] / gdb / c-exp.y
index b130a9c115ff7fc070254965e040a5504d0ebb64..27d18487766b78e416cbb69ad746e6f14df2527e 100644 (file)
@@ -1,6 +1,6 @@
 /* YACC parser for C expressions, for GDB.
    Copyright 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
-   1998, 1999, 2000
+   1998, 1999, 2000, 2003, 2004
    Free Software Foundation, Inc.
 
 This file is part of GDB.
@@ -49,10 +49,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 #include "bfd.h" /* Required by objfiles.h.  */
 #include "symfile.h" /* Required by objfiles.h.  */
 #include "objfiles.h" /* For have_full_symbols and have_partial_symbols */
-#include "completer.h" /* For skip_quoted().  */
-
-/* Flag indicating we're dealing with HP-compiled objects */ 
-extern int hp_som_som_object_present;
+#include "charset.h"
+#include "block.h"
+#include "cp-support.h"
 
 /* Remap normal yacc parser interface names (yyparse, yylex, yyerror, etc),
    as well as gratuitiously global symbol names, so we can have multiple
@@ -152,7 +151,7 @@ static int parse_number (char *, int, int, YYSTYPE *);
 
 %type <voidval> exp exp1 type_exp start variable qualified_name lcurly
 %type <lval> rcurly
-%type <tval> type typebase
+%type <tval> type typebase qualified_type
 %type <tvec> nonempty_typelist
 /* %type <bval> block */
 
@@ -199,7 +198,6 @@ static int parse_number (char *, int, int, YYSTYPE *);
 %token <opcode> ASSIGN_MODIFY
 
 /* C++ */
-%token THIS
 %token TRUEKEYWORD
 %token FALSEKEYWORD
 
@@ -248,9 +246,11 @@ exp1       :       exp
 /* Expressions, not including the comma operator.  */
 exp    :       '*' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_IND); }
+       ;
 
 exp    :       '&' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_ADDR); }
+       ;
 
 exp    :       '-' exp    %prec UNARY
                        { write_exp_elt_opcode (UNOP_NEG); }
@@ -501,7 +501,7 @@ exp :       VARIABLE
 
 exp    :       SIZEOF '(' type ')'     %prec UNARY
                        { write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type_int);
+                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_int);
                          CHECK_TYPEDEF ($3);
                          write_exp_elt_longcst ((LONGEST) TYPE_LENGTH ($3));
                          write_exp_elt_opcode (OP_LONG); }
@@ -517,12 +517,12 @@ exp       :       STRING
                          while (count-- > 0)
                            {
                              write_exp_elt_opcode (OP_LONG);
-                             write_exp_elt_type (builtin_type_char);
+                             write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
                              write_exp_elt_longcst ((LONGEST)(*sp++));
                              write_exp_elt_opcode (OP_LONG);
                            }
                          write_exp_elt_opcode (OP_LONG);
-                         write_exp_elt_type (builtin_type_char);
+                         write_exp_elt_type (builtin_type (current_gdbarch)->builtin_char);
                          write_exp_elt_longcst ((LONGEST)'\0');
                          write_exp_elt_opcode (OP_LONG);
                          write_exp_elt_opcode (OP_ARRAY);
@@ -532,21 +532,16 @@ exp       :       STRING
        ;
 
 /* C++.  */
-exp    :       THIS
-                       { write_exp_elt_opcode (OP_THIS);
-                         write_exp_elt_opcode (OP_THIS); }
-       ;
-
 exp     :       TRUEKEYWORD    
                         { write_exp_elt_opcode (OP_LONG);
-                          write_exp_elt_type (builtin_type_bool);
+                          write_exp_elt_type (builtin_type (current_gdbarch)->builtin_bool);
                           write_exp_elt_longcst ((LONGEST) 1);
                           write_exp_elt_opcode (OP_LONG); }
        ;
 
 exp     :       FALSEKEYWORD   
                         { write_exp_elt_opcode (OP_LONG);
-                          write_exp_elt_type (builtin_type_bool);
+                          write_exp_elt_type (builtin_type (current_gdbarch)->builtin_bool);
                           write_exp_elt_longcst ((LONGEST) 0);
                           write_exp_elt_opcode (OP_LONG); }
        ;
@@ -570,7 +565,7 @@ block       :       BLOCKNAME
 block  :       block COLONCOLON name
                        { struct symbol *tem
                            = lookup_symbol (copy_name ($3), $1,
-                                            VAR_NAMESPACE, (int *) NULL,
+                                            VAR_DOMAIN, (int *) NULL,
                                             (struct symtab **) NULL);
                          if (!tem || SYMBOL_CLASS (tem) != LOC_BLOCK)
                            error ("No function \"%s\" in specified context.",
@@ -581,7 +576,7 @@ block       :       block COLONCOLON name
 variable:      block COLONCOLON name
                        { struct symbol *sym;
                          sym = lookup_symbol (copy_name ($3), $1,
-                                              VAR_NAMESPACE, (int *) NULL,
+                                              VAR_DOMAIN, (int *) NULL,
                                               (struct symtab **) NULL);
                          if (sym == 0)
                            error ("No symbol \"%s\" in specified context.",
@@ -598,7 +593,8 @@ qualified_name:     typebase COLONCOLON name
                        {
                          struct type *type = $1;
                          if (TYPE_CODE (type) != TYPE_CODE_STRUCT
-                             && TYPE_CODE (type) != TYPE_CODE_UNION)
+                             && TYPE_CODE (type) != TYPE_CODE_UNION
+                             && TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
                            error ("`%s' is not defined as an aggregate type.",
                                   TYPE_NAME (type));
 
@@ -612,7 +608,8 @@ qualified_name:     typebase COLONCOLON name
                          struct type *type = $1;
                          struct stoken tmp_token;
                          if (TYPE_CODE (type) != TYPE_CODE_STRUCT
-                             && TYPE_CODE (type) != TYPE_CODE_UNION)
+                             && TYPE_CODE (type) != TYPE_CODE_UNION
+                             && TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
                            error ("`%s' is not defined as an aggregate type.",
                                   TYPE_NAME (type));
 
@@ -640,7 +637,7 @@ variable:   qualified_name
 
                          sym =
                            lookup_symbol (name, (const struct block *) NULL,
-                                          VAR_NAMESPACE, (int *) NULL,
+                                          VAR_DOMAIN, (int *) NULL,
                                           (struct symtab **) NULL);
                          if (sym)
                            {
@@ -655,8 +652,8 @@ variable:   qualified_name
                          if (msymbol != NULL)
                            {
                              write_exp_msymbol (msymbol,
-                                                lookup_function_type (builtin_type_int),
-                                                builtin_type_int);
+                                                lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
+                                                builtin_type (current_gdbarch)->builtin_int);
                            }
                          else
                            if (!have_full_symbols () && !have_partial_symbols ())
@@ -704,15 +701,15 @@ variable: name_not_typename
                          else
                            {
                              struct minimal_symbol *msymbol;
-                             register char *arg = copy_name ($1.stoken);
+                             char *arg = copy_name ($1.stoken);
 
                              msymbol =
                                lookup_minimal_symbol (arg, NULL, NULL);
                              if (msymbol != NULL)
                                {
                                  write_exp_msymbol (msymbol,
-                                                    lookup_function_type (builtin_type_int),
-                                                    builtin_type_int);
+                                                    lookup_function_type (builtin_type (current_gdbarch)->builtin_int),
+                                                    builtin_type (current_gdbarch)->builtin_int);
                                }
                              else if (!have_full_symbols () && !have_partial_symbols ())
                                error ("No symbol table is loaded.  Use the \"file\" command.");
@@ -785,7 +782,7 @@ array_mod:  '[' ']'
 func_mod:      '(' ')'
                        { $$ = 0; }
        |       '(' nonempty_typelist ')'
-                       { free ((PTR)$2); $$ = 0; }
+                       { free ($2); $$ = 0; }
        ;
 
 /* We used to try to recognize more pointer to member types here, but
@@ -798,70 +795,68 @@ func_mod: '(' ')'
 
 type   :       ptype
        |       typebase COLONCOLON '*'
-                       { $$ = lookup_member_type (builtin_type_int, $1); }
+                       { $$ = lookup_member_type (builtin_type (current_gdbarch)->builtin_int, $1); }
        ;
 
 typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        :       TYPENAME
                        { $$ = $1.type; }
        |       INT_KEYWORD
-                       { $$ = builtin_type_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
        |       LONG
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       SHORT
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       LONG INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       LONG SIGNED_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       SIGNED_KEYWORD LONG INT_KEYWORD
-                       { $$ = builtin_type_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long; }
        |       UNSIGNED LONG INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG UNSIGNED
-                       { $$ = builtin_type_unsigned_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long; }
        |       LONG LONG
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG INT_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       LONG LONG SIGNED_KEYWORD
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       SIGNED_KEYWORD LONG LONG
-                       { $$ = builtin_type_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
+       |       SIGNED_KEYWORD LONG LONG INT_KEYWORD
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_long; }
        |       UNSIGNED LONG LONG
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       UNSIGNED LONG LONG INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED
-                       { $$ = builtin_type_unsigned_long_long; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       LONG LONG UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_long_long; }
-       |       SIGNED_KEYWORD LONG LONG
-                       { $$ = lookup_signed_typename ("long long"); }
-       |       SIGNED_KEYWORD LONG LONG INT_KEYWORD
-                       { $$ = lookup_signed_typename ("long long"); }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_long_long; }
        |       SHORT INT_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       SHORT SIGNED_KEYWORD INT_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       SHORT SIGNED_KEYWORD
-                       { $$ = builtin_type_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_short; }
        |       UNSIGNED SHORT INT_KEYWORD
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       SHORT UNSIGNED 
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       SHORT UNSIGNED INT_KEYWORD
-                       { $$ = builtin_type_unsigned_short; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_short; }
        |       DOUBLE_KEYWORD
-                       { $$ = builtin_type_double; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_double; }
        |       LONG DOUBLE_KEYWORD
-                       { $$ = builtin_type_long_double; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_long_double; }
        |       STRUCT name
                        { $$ = lookup_struct (copy_name ($2),
                                              expression_context_block); }
@@ -877,11 +872,11 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
        |       UNSIGNED typename
                        { $$ = lookup_unsigned_typename (TYPE_NAME($2.type)); }
        |       UNSIGNED
-                       { $$ = builtin_type_unsigned_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_unsigned_int; }
        |       SIGNED_KEYWORD typename
                        { $$ = lookup_signed_typename (TYPE_NAME($2.type)); }
        |       SIGNED_KEYWORD
-                       { $$ = builtin_type_int; }
+                       { $$ = builtin_type (current_gdbarch)->builtin_int; }
                 /* It appears that this rule for templates is never
                    reduced; template recognition happens by lookahead
                    in the token processing code in yylex. */         
@@ -893,6 +888,77 @@ typebase  /* Implements (approximately): (type-qualifier)* type-specifier */
                        { $$ = follow_types ($2); }
        | typebase const_or_volatile_or_space_identifier_noopt 
                        { $$ = follow_types ($1); }
+       | qualified_type
+       ;
+
+/* FIXME: carlton/2003-09-25: This next bit leads to lots of
+   reduce-reduce conflicts, because the parser doesn't know whether or
+   not to use qualified_name or qualified_type: the rules are
+   identical.  If the parser is parsing 'A::B::x', then, when it sees
+   the second '::', it knows that the expression to the left of it has
+   to be a type, so it uses qualified_type.  But if it is parsing just
+   'A::B', then it doesn't have any way of knowing which rule to use,
+   so there's a reduce-reduce conflict; it picks qualified_name, since
+   that occurs earlier in this file than qualified_type.
+
+   There's no good way to fix this with the grammar as it stands; as
+   far as I can tell, some of the problems arise from ambiguities that
+   GDB introduces ('start' can be either an expression or a type), but
+   some of it is inherent to the nature of C++ (you want to treat the
+   input "(FOO)" fairly differently depending on whether FOO is an
+   expression or a type, and if FOO is a complex expression, this can
+   be hard to determine at the right time).  Fortunately, it works
+   pretty well in most cases.  For example, if you do 'ptype A::B',
+   where A::B is a nested type, then the parser will mistakenly
+   misidentify it as an expression; but evaluate_subexp will get
+   called with 'noside' set to EVAL_AVOID_SIDE_EFFECTS, and everything
+   will work out anyways.  But there are situations where the parser
+   will get confused: the most common one that I've run into is when
+   you want to do
+
+     print *((A::B *) x)"
+
+   where the parser doesn't realize that A::B has to be a type until
+   it hits the first right paren, at which point it's too late.  (The
+   workaround is to type "print *(('A::B' *) x)" instead.)  (And
+   another solution is to fix our symbol-handling code so that the
+   user never wants to type something like that in the first place,
+   because we get all the types right without the user's help!)
+
+   Perhaps we could fix this by making the lexer smarter.  Some of
+   this functionality used to be in the lexer, but in a way that
+   worked even less well than the current solution: that attempt
+   involved having the parser sometimes handle '::' and having the
+   lexer sometimes handle it, and without a clear division of
+   responsibility, it quickly degenerated into a big mess.  Probably
+   the eventual correct solution will give more of a role to the lexer
+   (ideally via code that is shared between the lexer and
+   decode_line_1), but I'm not holding my breath waiting for somebody
+   to get around to cleaning this up...  */
+
+qualified_type: typebase COLONCOLON name
+               {
+                 struct type *type = $1;
+                 struct type *new_type;
+                 char *ncopy = alloca ($3.length + 1);
+
+                 memcpy (ncopy, $3.ptr, $3.length);
+                 ncopy[$3.length] = '\0';
+
+                 if (TYPE_CODE (type) != TYPE_CODE_STRUCT
+                     && TYPE_CODE (type) != TYPE_CODE_UNION
+                     && TYPE_CODE (type) != TYPE_CODE_NAMESPACE)
+                   error ("`%s' is not defined as an aggregate type.",
+                          TYPE_NAME (type));
+
+                 new_type = cp_lookup_nested_type (type, ncopy,
+                                                   expression_context_block);
+                 if (new_type == NULL)
+                   error ("No type \"%s\" within class or namespace \"%s\".",
+                          ncopy, TYPE_NAME (type));
+                 
+                 $$ = new_type;
+               }
        ;
 
 typename:      TYPENAME
@@ -900,19 +966,19 @@ typename: TYPENAME
                {
                  $$.stoken.ptr = "int";
                  $$.stoken.length = 3;
-                 $$.type = builtin_type_int;
+                 $$.type = builtin_type (current_gdbarch)->builtin_int;
                }
        |       LONG
                {
                  $$.stoken.ptr = "long";
                  $$.stoken.length = 4;
-                 $$.type = builtin_type_long;
+                 $$.type = builtin_type (current_gdbarch)->builtin_long;
                }
        |       SHORT
                {
                  $$.stoken.ptr = "short";
                  $$.stoken.length = 5;
-                 $$.type = builtin_type_short;
+                 $$.type = builtin_type (current_gdbarch)->builtin_short;
                }
        ;
 
@@ -975,20 +1041,20 @@ name_not_typename :      NAME
 
 static int
 parse_number (p, len, parsed_float, putithere)
-     register char *p;
-     register int len;
+     char *p;
+     int len;
      int parsed_float;
      YYSTYPE *putithere;
 {
   /* FIXME: Shouldn't these be unsigned?  We don't deal with negative values
      here, and we do kind of silly things like cast to unsigned.  */
-  register LONGEST n = 0;
-  register LONGEST prevn = 0;
+  LONGEST n = 0;
+  LONGEST prevn = 0;
   ULONGEST un;
 
-  register int i = 0;
-  register int c;
-  register int base = input_radix;
+  int i = 0;
+  int c;
+  int base = input_radix;
   int unsigned_p = 0;
 
   /* Number of "L" suffixes encountered.  */
@@ -1034,11 +1100,11 @@ parse_number (p, len, parsed_float, putithere)
       c = tolower (p[len - 1]);
 
       if (c == 'f')
-       putithere->typed_val_float.type = builtin_type_float;
+       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_float;
       else if (c == 'l')
-       putithere->typed_val_float.type = builtin_type_long_double;
+       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_long_double;
       else if (isdigit (c) || c == '.')
-       putithere->typed_val_float.type = builtin_type_double;
+       putithere->typed_val_float.type = builtin_type (current_gdbarch)->builtin_double;
       else
        return ERROR;
 
@@ -1154,15 +1220,15 @@ parse_number (p, len, parsed_float, putithere)
         int.  This probably should be fixed.  GCC gives a warning on
         such constants.  */
 
-      unsigned_type = builtin_type_unsigned_int;
-      signed_type = builtin_type_int;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_int;
+      signed_type = builtin_type (current_gdbarch)->builtin_int;
     }
   else if (long_p <= 1
           && (un >> (TARGET_LONG_BIT - 2)) == 0)
     {
       high_bit = ((ULONGEST)1) << (TARGET_LONG_BIT-1);
-      unsigned_type = builtin_type_unsigned_long;
-      signed_type = builtin_type_long;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long;
+      signed_type = builtin_type (current_gdbarch)->builtin_long;
     }
   else
     {
@@ -1173,8 +1239,8 @@ parse_number (p, len, parsed_float, putithere)
       else
        shift = (TARGET_LONG_LONG_BIT - 1);
       high_bit = (ULONGEST) 1 << shift;
-      unsigned_type = builtin_type_unsigned_long_long;
-      signed_type = builtin_type_long_long;
+      unsigned_type = builtin_type (current_gdbarch)->builtin_unsigned_long_long;
+      signed_type = builtin_type (current_gdbarch)->builtin_long_long;
     }
 
    putithere->typed_val_int.val = n;
@@ -1268,7 +1334,7 @@ yylex ()
   tokstart = lexptr;
   /* See if it is a special token of length 3.  */
   for (i = 0; i < sizeof tokentab3 / sizeof tokentab3[0]; i++)
-    if (STREQN (tokstart, tokentab3[i].operator, 3))
+    if (strncmp (tokstart, tokentab3[i].operator, 3) == 0)
       {
        lexptr += 3;
        yylval.opcode = tokentab3[i].opcode;
@@ -1277,7 +1343,7 @@ yylex ()
 
   /* See if it is a special token of length 2.  */
   for (i = 0; i < sizeof tokentab2 / sizeof tokentab2[0]; i++)
-    if (STREQN (tokstart, tokentab2[i].operator, 2))
+    if (strncmp (tokstart, tokentab2[i].operator, 2) == 0)
       {
        lexptr += 2;
        yylval.opcode = tokentab2[i].opcode;
@@ -1315,9 +1381,18 @@ yylex ()
        c = parse_escape (&lexptr);
       else if (c == '\'')
        error ("Empty character constant.");
+      else if (! host_char_to_target (c, &c))
+        {
+          int toklen = lexptr - tokstart + 1;
+          char *tok = alloca (toklen + 1);
+          memcpy (tok, tokstart, toklen);
+          tok[toklen] = '\0';
+          error ("There is no character corresponding to %s in the target "
+                 "character set `%s'.", tok, target_charset ());
+        }
 
       yylval.typed_val_int.val = c;
-      yylval.typed_val_int.type = builtin_type_char;
+      yylval.typed_val_int.type = builtin_type (current_gdbarch)->builtin_char;
 
       c = *lexptr++;
       if (c != '\'')
@@ -1376,7 +1451,7 @@ yylex ()
       {
        /* It's a number.  */
        int got_dot = 0, got_e = 0, toktype;
-       register char *p = tokstart;
+       char *p = tokstart;
        int hex = input_radix > 10;
 
        if (c == '0' && (p[1] == 'x' || p[1] == 'X'))
@@ -1465,6 +1540,8 @@ yylex ()
       tempbufindex = 0;
 
       do {
+        char *char_start_pos = tokptr;
+
        /* Grow the static temp buffer if necessary, including allocating
           the first one on demand. */
        if (tempbufindex + 1 >= tempbufsize)
@@ -1487,7 +1564,19 @@ yylex ()
            tempbuf[tempbufindex++] = c;
            break;
          default:
-           tempbuf[tempbufindex++] = *tokptr++;
+           c = *tokptr++;
+            if (! host_char_to_target (c, &c))
+              {
+                int len = tokptr - char_start_pos;
+                char *copy = alloca (len + 1);
+                memcpy (copy, char_start_pos, len);
+                copy[len] = '\0';
+
+                error ("There is no character corresponding to `%s' "
+                       "in the target character set `%s'.",
+                       copy, target_charset ());
+              }
+            tempbuf[tempbufindex++] = c;
            break;
          }
       } while ((*tokptr != '"') && (*tokptr != '\0'));
@@ -1550,63 +1639,52 @@ yylex ()
   switch (namelen)
     {
     case 8:
-      if (STREQN (tokstart, "unsigned", 8))
+      if (strncmp (tokstart, "unsigned", 8) == 0)
        return UNSIGNED;
       if (current_language->la_language == language_cplus
-         && STREQN (tokstart, "template", 8))
+         && strncmp (tokstart, "template", 8) == 0)
        return TEMPLATE;
-      if (STREQN (tokstart, "volatile", 8))
+      if (strncmp (tokstart, "volatile", 8) == 0)
        return VOLATILE_KEYWORD;
       break;
     case 6:
-      if (STREQN (tokstart, "struct", 6))
+      if (strncmp (tokstart, "struct", 6) == 0)
        return STRUCT;
-      if (STREQN (tokstart, "signed", 6))
+      if (strncmp (tokstart, "signed", 6) == 0)
        return SIGNED_KEYWORD;
-      if (STREQN (tokstart, "sizeof", 6))      
+      if (strncmp (tokstart, "sizeof", 6) == 0)
        return SIZEOF;
-      if (STREQN (tokstart, "double", 6))      
+      if (strncmp (tokstart, "double", 6) == 0)
        return DOUBLE_KEYWORD;
       break;
     case 5:
       if (current_language->la_language == language_cplus)
         {
-          if (STREQN (tokstart, "false", 5))
+          if (strncmp (tokstart, "false", 5) == 0)
             return FALSEKEYWORD;
-          if (STREQN (tokstart, "class", 5))
+          if (strncmp (tokstart, "class", 5) == 0)
             return CLASS;
         }
-      if (STREQN (tokstart, "union", 5))
+      if (strncmp (tokstart, "union", 5) == 0)
        return UNION;
-      if (STREQN (tokstart, "short", 5))
+      if (strncmp (tokstart, "short", 5) == 0)
        return SHORT;
-      if (STREQN (tokstart, "const", 5))
+      if (strncmp (tokstart, "const", 5) == 0)
        return CONST_KEYWORD;
       break;
     case 4:
-      if (STREQN (tokstart, "enum", 4))
+      if (strncmp (tokstart, "enum", 4) == 0)
        return ENUM;
-      if (STREQN (tokstart, "long", 4))
+      if (strncmp (tokstart, "long", 4) == 0)
        return LONG;
       if (current_language->la_language == language_cplus)
           {
-            if (STREQN (tokstart, "true", 4))
+            if (strncmp (tokstart, "true", 4) == 0)
               return TRUEKEYWORD;
-
-            if (STREQN (tokstart, "this", 4))
-              {
-                static const char this_name[] =
-                { CPLUS_MARKER, 't', 'h', 'i', 's', '\0' };
-                
-                if (lookup_symbol (this_name, expression_context_block,
-                                   VAR_NAMESPACE, (int *) NULL,
-                                   (struct symtab **) NULL))
-                  return THIS;
-              }
           }
       break;
     case 3:
-      if (STREQN (tokstart, "int", 3))
+      if (strncmp (tokstart, "int", 3) == 0)
        return INT_KEYWORD;
       break;
     default:
@@ -1626,7 +1704,13 @@ yylex ()
      string to get a reasonable class/namespace spec or a
      fully-qualified name.  This is a kludge to get around the
      HP aCC compiler's generation of symbol names with embedded
-     colons for namespace and nested classes. */ 
+     colons for namespace and nested classes. */
+
+  /* NOTE: carlton/2003-09-24: I don't entirely understand the
+     HP-specific code, either here or in linespec.  Having said that,
+     I suspect that we're actually moving towards their model: we want
+     symbols whose names are fully qualified, which matches the
+     description above.  */
   if (unquoted_expr)
     {
       /* Only do it if not inside single quotes */ 
@@ -1652,7 +1736,7 @@ yylex ()
     int hextype;
 
     sym = lookup_symbol (tmp, expression_context_block,
-                        VAR_NAMESPACE,
+                        VAR_DOMAIN,
                         current_language->la_language == language_cplus
                         ? &is_a_field_of_this : (int *) NULL,
                         (struct symtab **) NULL);
@@ -1680,95 +1764,16 @@ yylex ()
 
     if (sym && SYMBOL_CLASS (sym) == LOC_TYPEDEF)
         {
-#if 1
-         /* Despite the following flaw, we need to keep this code enabled.
-            Because we can get called from check_stub_method, if we don't
-            handle nested types then it screws many operations in any
-            program which uses nested types.  */
-         /* In "A::x", if x is a member function of A and there happens
-            to be a type (nested or not, since the stabs don't make that
-            distinction) named x, then this code incorrectly thinks we
-            are dealing with nested types rather than a member function.  */
-
-         char *p;
-         char *namestart;
-         struct symbol *best_sym;
-
-         /* Look ahead to detect nested types.  This probably should be
-            done in the grammar, but trying seemed to introduce a lot
-            of shift/reduce and reduce/reduce conflicts.  It's possible
-            that it could be done, though.  Or perhaps a non-grammar, but
-            less ad hoc, approach would work well.  */
-
-         /* Since we do not currently have any way of distinguishing
-            a nested type from a non-nested one (the stabs don't tell
-            us whether a type is nested), we just ignore the
-            containing type.  */
-
-         p = lexptr;
-         best_sym = sym;
-         while (1)
-           {
-             /* Skip whitespace.  */
-             while (*p == ' ' || *p == '\t' || *p == '\n')
-               ++p;
-             if (*p == ':' && p[1] == ':')
-               {
-                 /* Skip the `::'.  */
-                 p += 2;
-                 /* Skip whitespace.  */
-                 while (*p == ' ' || *p == '\t' || *p == '\n')
-                   ++p;
-                 namestart = p;
-                 while (*p == '_' || *p == '$' || (*p >= '0' && *p <= '9')
-                        || (*p >= 'a' && *p <= 'z')
-                        || (*p >= 'A' && *p <= 'Z'))
-                   ++p;
-                 if (p != namestart)
-                   {
-                     struct symbol *cur_sym;
-                     /* As big as the whole rest of the expression, which is
-                        at least big enough.  */
-                     char *ncopy = alloca (strlen (tmp)+strlen (namestart)+3);
-                     char *tmp1;
-
-                     tmp1 = ncopy;
-                     memcpy (tmp1, tmp, strlen (tmp));
-                     tmp1 += strlen (tmp);
-                     memcpy (tmp1, "::", 2);
-                     tmp1 += 2;
-                     memcpy (tmp1, namestart, p - namestart);
-                     tmp1[p - namestart] = '\0';
-                     cur_sym = lookup_symbol (ncopy, expression_context_block,
-                                              VAR_NAMESPACE, (int *) NULL,
-                                              (struct symtab **) NULL);
-                     if (cur_sym)
-                       {
-                         if (SYMBOL_CLASS (cur_sym) == LOC_TYPEDEF)
-                           {
-                             best_sym = cur_sym;
-                             lexptr = p;
-                           }
-                         else
-                           break;
-                       }
-                     else
-                       break;
-                   }
-                 else
-                   break;
-               }
-             else
-               break;
-           }
-
-         yylval.tsym.type = SYMBOL_TYPE (best_sym);
-#else /* not 0 */
+         /* NOTE: carlton/2003-09-25: There used to be code here to
+            handle nested types.  It didn't work very well.  See the
+            comment before qualified_type for more info.  */
          yylval.tsym.type = SYMBOL_TYPE (sym);
-#endif /* not 0 */
          return TYPENAME;
         }
-    if ((yylval.tsym.type = lookup_primitive_typename (tmp)) != 0)
+    yylval.tsym.type
+      = language_lookup_primitive_type_by_name (current_language,
+                                               current_gdbarch, tmp);
+    if (yylval.tsym.type != NULL)
       return TYPENAME;
 
     /* Input names that aren't symbols but ARE valid hex numbers,
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